Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
040028goodexcellent21excellent
030015goodexcellent21excellent
020016goodexcellent21excellent
010015goodexcellent21excellent
000017goodexcellent21excellent
230024goodexcellent31excellent
220022goodexcellent31excellent
210038lightly pollutedexcellent11excellent
20006excellentexcellent11excellent
19003excellentexcellent11excellent
18004excellentexcellent11excellent
17007excellentexcellent21excellent
160010excellentexcellent21excellent
150011excellentexcellent21excellent
140017goodexcellent31excellent
130016goodexcellent31excellent
120020goodexcellent51excellent
110030goodexcellent71excellent
100041lightly pollutedexcellent111excellent
090060lightly pollutedexcellent121excellent
080065moderately pollutedgood131excellent
070060lightly pollutedexcellent111excellent
060054lightly pollutedexcellent111excellent
050037lightly pollutedexcellent81excellent